What connection can be created in Rails in this case2?

Question

Ruby on Rails

Here is a description of the question: What kind of connection can be created in Rails in this case? and answer. But the answer doesn't work. Are there options?

Answer 1

Maybe has_and_belongs_to_many ?
A boss can have multiple assistants and assistants can have multiple bosses.
Read more rusrails.ru/active-record-associations#svyaz-has_a...